NerdSEQ

XOR Electronics 32HP
fw 1.27
SEQUENCER CLOCK SAMPLER MIDI I/O

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Hardware tracker sequencer. 6 modular CV/trigger tracks plus 2 audio tracks, 175 patterns, 176 patches, 32 tables, 8 automators, 8 envelopes, 12 sample slots. Expander ecosystem for MIDI, triggers, CV16, video.

Patch Ideas · 7

★ Classic tracker voice
track 1 CV 1V/Oct to VCO · track 1 TRIGGER to envelope · envelope to VCA · 16-step pattern with melodic notes · patches add per-step velocity via MOD 1 to VCA CV
▸ Show diagram
Patch diagramPatch diagram with 5 modules and 6 connections. Modules: NerdSEQ, VCO, VCA, Envelope, Filter. Signals: 2 audio, 2 cv, 1 pitch, 1 trigger.NerdSEQVCOVCAEnvelopeFilterTrack 1: CV/Gate, 1V/OctPattern: 16 stepsCV 11v/octTRIGGER 1trigMOD 1cvV/Oct1v/octOutaudioCVcvInaudioTrigtrigOutcvInaudioOutaudioaudiocvpitchtrigger
★ Polyrhythm per track
tracks 1-4 pattern lengths 16/13/7/11 · track dividers ÷2, ÷3, ÷4 mixed · shared clock · each TRIGGER feeds a drum · evolving polyrhythmic pattern from same pattern numbers
▸ Show diagram
Patch diagramPatch diagram with 5 modules and 4 connections. Modules: NerdSEQ, Drum 1, Drum 2, Drum 3, Drum 4. Signals: 4 trigger.NerdSEQDrum 1Drum 2Drum 3Drum 4Track 1: 16 steps, /2Track 2: 13 steps, /3Track 3: 7 steps, /4Track 4: 11 steps, /1TRIGGER 1trigTRIGGER 2trigTRIGGER 3trigTRIGGER 4trigTrigtrigTrigtrigTrigtrigTrigtrigtrigger
Table-driven arpeggio
pattern plays held C note every bar · table 01 transposes: 0, +4, +7, +12 synced to track clock · creates arpeggio from single pattern note · modulate table choice via automator for evolving chords
▸ Show diagram
Patch diagramPatch diagram with 3 modules and 2 connections. Modules: NerdSEQ, VCO, Envelope. Signals: 1 pitch, 1 trigger.NerdSEQVCOEnvelopeTrack 1: CV/GateTable 01: 0 · +4 · +7 · +12Pattern row 1: C-3 + T01CV 11v/octTRIGGER 1trigV/Oct1v/octTrigtrigpitchtrigger
CV-recorded performance
external keyboard CV into INPUT 1 · track 1 set to record INPUT 1 to CV 1 · RECORD armed · play keyboard live · sequence captures performance with quantization options
▸ Show diagram
Patch diagramPatch diagram with 4 modules and 4 connections. Modules: NerdSEQ, Keyboard, VCO, Envelope. Signals: 2 pitch, 1 gate, 1 trigger.NerdSEQKeyboardVCOEnvelopeTrack 1: record from INPUT 1INPUT 11v/octINPUT 2gateCV 11v/octTRIGGER 1trigCV1v/octGategateV/Oct1v/octTrigtrigpitchgatetrigger
★ Probability-driven hats
track 4 16-step pattern · every even step 100% · every odd 30% probability · table 02 ratchets chosen steps 2-4x at random · generates organic hat variation
▸ Show diagram
Patch diagramPatch diagram with 2 modules and 2 connections. Modules: NerdSEQ, Hats. Signals: 1 cv, 1 trigger.NerdSEQHatsTrack 4: 16 stepsEven steps: 100% probOdd steps: 30% prob · Table 02 ratchetTRIGGER 4trigMOD 4cvTrigtrigAccentcvcvtrigger
Audio track FM synth
audio track A set to 4-op FM · sequence notes per step · automator 1 LFO on operator ratio · automator 2 envelope to modulation index · mix with modular CV tracks via SAMPLE OUT 1
▸ Show diagram
Patch diagramPatch diagram with 3 modules and 3 connections. Modules: NerdSEQ, Output, External Drum. Signals: 2 audio, 1 trigger.NerdSEQOutputExternal DrumAudio Track A: 4-op FMAutomator 1: LFO → op ratioAutomator 2: ADSR → mod indexSAMPLE OUT 1audioSAMPLE OUT 2audioTRIGGER 1trigLaudioRaudioTrigtrigaudiotrigger
Pattern launch set
8 tracks · 8 different patterns queued via OK · live mute/solo per track using SHIFT+DOWN+START · SHIFT+UP+START solo · build arrangement by pattern chaining · Break command stops individual tracks
▸ Show diagram
Patch diagramPatch diagram with 7 modules and 6 connections. Signals: 1 audio, 2 pitch, 2 trigger, 1 clock.NerdSEQVCO 1VCO 2Drum 1Drum 2MixerExternalAll tracks: queued patternsCV 11v/octCV 21v/octTRIGGER 1trigTRIGGER 2trigSAMPLE OUT 1audioCLOCK OUTclkV/Oct1v/octV/Oct1v/octTrigtrigTrigtrigIn 1audioClockclkaudiopitchtriggerclock

Behaviors

Tracker row-based editing enter pattern screen

Patterns are vertical lists of rows, each row a step. Tracks are columns with note, patch, trigger, FX sub-columns. Workflow inspired by Fasttracker 2 / OctaMED — type notes as 'C-3', 'F#5' rows, not piano-roll. Up to 64 steps per pattern, 175 patterns available.

Independent track playback assign different pattern lengths/dividers per track

All 8 tracks run independently — mix 16-step and 13-step patterns, divide clock per track (÷32 to ×8), or let tracks free-run. Muted tracks still advance (maintain phase) so unmuting returns them in sync; Break commands still fire.

Patches as macros PATCH button · assign patch number per step

176 patches store complete parameter snapshots (velocity, attack, envelope, FX settings) recallable per step. Patches can be cloned and edited live. Effectively step-level macros for complex-per-note behavior.

Tables (sequencer within) TABLE button · call table from pattern

32 tables, each a 16-row micro-sequencer that triggers per step. Tables transpose, scale, randomize, or FX the parent track — synced or free-running from main clock. Great for arpeggios, microrhythms, or per-note modulation cycles.

Automators as LFOs/randoms AUTOMATE button · assign source and destination

8 automator slots generate LFOs, randomness, noise, or envelopes routed via modulation matrix to any internal parameter or external CV/MOD output. Automators operate without consuming track resources.

8 ADSR envelopes AUTOMATE button · envelope screen

Eight full ADSR envelopes with rich trigger/gate source options — sequencer gates, CV inputs, tables, other automators. Route to CV, MOD, sample volume, or FM parameters.

Audio tracks as synths set audio track to oscillator/FM/sample

Two sample outputs can run samples, waveform oscillators, or 4-operator FM synthesis — each audio track has 2 voices (2×2 for 4-voice total). Pitch set per step in note scale; FX include bitcrush, distortion, delay, wavefolder.

Playback modes per-track playback mode setting

Forward, backward, pingpong, random, snake, spiral, even, odd, and more — each track independently configurable. Combined with pattern chaining, creates non-linear sequencing without live intervention.

Probability + ratcheting per-step / per-function probability

0–100% probability (1% resolution) assignable to any sequencer row or dedicated functions (CV, Mod, Trigger/Gate, Tables, Samples, FX). Advanced ratcheting settings per step. Per-step groove adds step-length micro-variation for polyrhythms.

Live pattern launching Live mode

Patterns can be triggered, muted, and soloed independently from sequencer. SHIFT+DOWN+START mutes; SHIFT+UP+START solos. Live editing while playing — pattern creation, recording, and nearly all functions stay accessible during playback.

CV input recording RECORD + patch CV source to INPUT jack

Free-routing of CV inputs to record into CV sub-columns or trigger parameters. Enables CV capture from external sources (keyboards, LFOs) directly onto steps without menu diving.

Expander ecosystem connect IO/Trigger16/CV16/Video/NSA expander

Ribbon connector adds MIDI I/O + Sega gamepad (IO-Expander), 16 trigger outs (Trigger16), 16 CV outs (CV16), HDMI/composite video of the screen (Video-IO), or cartridge-based synth engines (NSA). Up to 64 total outputs with expanders.

OFFSET range switch flip hardware toggle

Two panel toggles change CV and MOD output ranges between bipolar (-5V/+5V) and unipolar (0V/+10V) globally. Useful to match Volt/Hz gear or unipolar modulation destinations without per-track config.

MIDI polyphonic sequencing IO-Expander attached

Per-track: 4 polyphonic notes, Velocity, CC, Pitch bend, Program Change, Channel/Poly Aftertouch, NRPN. Sequences MIDI gear and records MIDI in; recording accepts poly input.

Launchpad integration connect Launchpad via IO/MIDI expander

Launchpad maps pattern rows to grid for finger-drum style entry and step edit. Launchpad Mini/S/Pro/X families supported — mute/solo and step-input layers switch via side buttons.

Controls

Global SEQUENCER / PATTERN / PATCH / TABLE / AUTOMATE / PROJECT Six top-row half-size navigation buttons. Each opens its corresponding screen. Hold PATTERN while in Pattern screen to page between patterns with cursor keys.
6 half-size buttons · context menu via NERD
Global MARK / COPY / DELETE / RECORD / NERD / SETUP Second-row edit functions (via SHIFT). MARK starts selection, COPY/DELETE act on clipboard, RECORD toggles live recording, NERD opens context menu, SETUP global settings.
Hold SHIFT + top-row button
Global START / STOP Starts/queues patterns. SHIFT+STOP stops sequencer (security: press STOP twice). SHIFT+STOP while stopped resets all gates and issues a reset pulse.
LED indicates playback
Global SHIFT / OK / DOWN SHIFT accesses secondary button roles and enables fine/coarse value editing. OK confirms/creates patterns and patches. DOWN pages 16 rows (with SHIFT).
SHIFT+CURSOR LEFT/RIGHT = ±1 · SHIFT+CURSOR UP/DOWN = ±16 or ±octave
Global Cursor keys (4) Navigate rows/columns on all screens. Combined with SHIFT to edit values in place.
UP/DOWN/LEFT/RIGHT
CV outputs OFFSET switch (CV) Toggle switch that flips the CV output range between -5V/+5V and 0V/+10V for all 12 CV outputs.
2 positions
MOD outputs OFFSET switch (MOD) Toggle switch for MOD output range, independent of CV offset.
2 positions

I/O

IN · 3

  • INPUT 1–4 (CV) 0V – +10V CV
    Four free-assignable CV inputs for live manipulation, CV recording, or parameter routing.
  • CLOCK IN 5V CLK
    External clock input. Accepts 1/16 ticks, 24 PPQN, or DIN-sync depending on setup.
  • RESET IN 5V GATE
    Reset pulse input. Resets all tracks to first row.

OUT · 6

  • CV 1–6 -5V/+5V or 0V/+10V (OFFSET switch) CV
    Six CV outputs — one per modular track. Supports 1V/Oct, 1.2V/Oct, and Volt/Hz ranges per track.
  • TRIGGER 1–6 5V GATE
    Six trigger/gate outputs — one per modular track. Gate length configurable per step.
  • MOD 1–6 -5V/+5V or 0V/+10V (OFFSET switch) CV
    Six modulation outputs — routable to envelopes, automators, or pattern data.
  • SAMPLE OUT 1 / 2 -5V/+5V · AC-coupled AUDIO
    Two audio outputs from the sample/synth tracks. AC-coupled.
  • CLOCK OUT 5V GATE
    Regular modular clock output. Can emit reset pulse on stop.
  • RESET OUT 5V GATE
    Reset pulse output. Fires on sequencer start or SHIFT+STOP.